If you log on to an alt he's going to want to run the new content.
Before he moves on he's going to want to have his professions up to date.
To get his professions up to date he'll need to farm some materials.
While he farms some materials he's going to want a zapthrottle mote extractor.
The mote extractor requires a delicate arcanite converter.
Since no one makes many of those anymore, he's going to need to fly to Winterspring.
When he can make the converter he'll see that he needs an arcanite bar.
To make an arcanite bar you need to log on to your alchemist alt...